Abstract: According to one embodiment, a scintillator includes a first layer provided on a surface of a substrate and including thallium activated cesium iodide; and a second layer provided on the first layer and including thallium activated cesium iodide. The second layer includes crystals having a [100] orientation partially diverted from a direction perpendicular to the surface of the substrate. Half width at half maximum of a frequency distribution curve of an angle between the direction perpendicular to the surface of the substrate and the [001] orientation, which is obtained by measuring the angle using EBSD method, is 2.4 degree or less.

Abstract: According to one embodiment, an X-ray tube device includes an anode target including a target surface and a cathode including a plurality of electron generation sources configured to emit the electrons, a vacuum envelope configured to house the cathode and the anode target and internally sealed in a vacuum airtight manner, and a quadrupole magnetic-field generator configured to form a magnetic field by being supplied with a current from a power source, the quadrupole magnetic-field generator being installed on an outer side of the vacuum envelope and constituted of a quadrupole surrounding a periphery of electron orbits of the electrons emitted simultaneously from each of the plurality of electron generation sources.

Abstract: According to one embodiment, an X-ray tube device includes a cathode which emits an electron in a direction of an electron path, an anode target which faces the cathode and includes a target surface generating an X-ray, a vacuum envelope which accommodates the cathode and the anode target and is sealed in a vacuum-tight manner, and a quadrupole magnetic field generation unit which forms a magnetic field when direct current is supplied from an electric source, is eccentrically provided with respect to a straight line accordance with the electron path outside the vacuum envelope, and includes a quadrupole surrounding a circumference of a part of the electron path.

Abstract: According to one embodiment, an apparatus of manufacturing a radiation detection panel, includes an evaporation source configured to evaporate a scintillator material and emit the scintillator material vertically upward, a holding mechanism located vertically above the evaporation source, and holding a photoelectric conversion substrate, and a heat conductor arranged opposite to the holding mechanism with a gap.

Abstract: According to one embodiment, an apparatus of manufacturing a radiation detection panel, includes an evaporation source configured to evaporate a scintillator material and emit the scintillator material vertically upward, a holding mechanism located vertically above the evaporation source, and holding a photoelectric conversion substrate, and a heat conductor arranged opposite to the holding mechanism with a gap.

Abstract: According to one embodiment, an X-ray tube assembly includes a cathode includes a first non-magnetic metal member having high electrical conductivity, an anode target includes a second non-magnetic metal member having high electrical conductivity, a vacuum envelope having depressed portion depressed, and a first magnetic deflector provided outside the vacuum envelope, includes first magnetic pole pair generating the alternating magnetic field, the first magnetic pole pair being provided in close vicinity to a wall surface of the depressed portion.

Abstract: According to one embodiment, an X-ray tube includes a cathode, an anode target and an envelope. The cathode includes an insulating member, a conductive line, a pin assembly, a filament, a focusing electrode, and a terminal assembly. The conductive line is formed on the insulating member. The pin assembly includes a pin and a first sleeve. The terminal assembly is fixed to the insulating member, is supporting the filament, and is electrically connecting the filament to the conductive line.

Abstract: According to the embodiment, a radiation detector includes an array substrate, a scintillator layer, a wall body, a filling body, and a moisture-resistant body. A peripheral portion of the scintillator layer has a tapered shape in a direction toward outside. The filling body adheres to an inner side surface of the wall body. The filling body is close or adhering to the peripheral portion of the scintillator layer having the tapered shape. The filling body fills a space above the peripheral portion of the scintillator layer. A height of an upper surface of the filling body is close to a height of an upper surface of the wall body.

Abstract: According to one embodiment, a rotating anode X-ray tube including a rotating cylinder, a rotating shaft fixed to the inside of the rotating cylinder, an anode fixing body arranged between the rotating cylinder and the rotating shaft, extending in the axial direction, and constituted of one of a magnetic substance member formed of a magnetic substance and a heat-transfer enhancing member heat conductivity of which is higher than surrounding members, ball bearings, and an inner member, connected to the anode fixing body by a connecting member, and constituted of one of the magnetic substance member and the heat-transfer enhancing member, one being different from the member constituting the anode fixing body.

Abstract: According to the embodiment, a radiation detector includes an array substrate including a photoelectric conversion element, a scintillator layer formed on the photoelectric conversion element and converting radiation to fluorescence, and a moisture-proof layer including a surface-smoothing layer which is a continuous film formed to cover the scintillator layer and including at least an organic resin material as a main component and a moisture-proof layer which is a continuous film formed on a surface of the smoothed layer by direct film formation and consisting from inorganic material.

Abstract: In one embodiment, a rotating anode type X-ray tube comprises a fixed shaft having a first surface, a rotor, a cathode emitting electrons, and an anode target. The rotor comprises a first cylinder having a second surface, a second cylinder, and a third cylinder. A first threaded portion on an inner surface of the first cylinder and a second threaded portion on an outer peripheral surface of the third cylinder are tightened. A screw member is screwed in a third threaded portion on an inner peripheral surface of a hole which penetrates the third cylinder, and a tip portion of the screw member presses the second cylinder against the second surface.

Abstract: According to one embodiment, an X-ray tube assembly includes a cathode, an anode target, a joint including an inflow part into which a coolant flows, a first cylindrical pipe to which the joint is connected at one end, and the anode target is joined at an outer bottom part of the other end, a second cylindrical pipe whose first end part is fitted into the inflow part, and whose second end part is arranged to eject the coolant toward the bottom part of the first cylindrical pipe, the second cylindrical pipe being placed inside the first cylindrical pipe and an elastic member provided between the first end part and the first cylindrical pipe.

Abstract: According to one embodiment, an emitter comprise a base portion including an electron emission surface from which electrons are emitted, a pair of leg portions applying a voltage to the electron emission surface, and a rib portion formed by bending an edge of the base portion to a side opposite to the electron emission surface, on at least a part of an outline of the electron emission surface.

Abstract: According to the embodiment, a radiation detector includes an array substrate, a scintillator layer, a wall body, and a filled portion, where the array substrate includes a substrate and multiple photoelectric conversion elements, the multiple photoelectric conversion elements are provided on one surface side of the substrate, the scintillator layer includes a first fluorescent material and is provided on the multiple photoelectric conversion elements, the wall body surrounds the scintillator layer and is provided on the one surface side of the substrate, and the filled portion includes a second fluorescent material and is provided between the scintillator layer and the wall body. The scintillator layer includes a tilted portion in a peripheral edge portion of the scintillator layer; and a thickness of the tilted portion gradually decreases toward the outer side of the scintillator layer. The filled portion is provided on the tilted portion.

Abstract: According to one embodiment, an X-ray tube includes an elongated anode target, a cathode, and a vacuum envelope. The cathode includes an electron emission source and a converging electrode including a trench portion. The trench portion includes a closest inner circumferential wall, an upper inner circumferential wall, and a lower inner circumferential wall. The electron emission source projects towards a opening of the trench portion from a boundary between the closest inner circumferential wall and the upper inner circumferential wall.

Abstract: According to an embodiment, a radiation detector comprises a photoelectric conversion substrate and a scintillator layer. The photoelectric conversion substrate converts light into an electrical signal. The scintillator layer contacts the photoelectric conversion substrate and converts radiation incident from the outside into light. The scintillator layer is a fluorescer of CsI containing Tl as an activator. The CsI is a halide. The concentration of the activator inside the fluorescer is 1.6 mass %±0.4 mass %. The concentration of the activator inside the fluorescer in an in-plane direction of the scintillator layer has the relationship of central portion>peripheral portion. The central portion is a central region of a formation region of the scintillator layer. The peripheral portion is an outer circumferential region of the formation region of the scintillator layer.

Abstract: An X-ray tube device in one embodiment has an X-ray tube and a container storing the X-ray tube, filled with insulating oil, and having an X-ray emission window. The X-ray tube includes a cylindrical glass envelope holding an anode and a cathode opposite to each other and keeping them in vacuum, and an insulating tube fit over the glass envelope and having an X-ray transmission section. The insulating tube has a base section attached to the container. The base section defines a space communicating between the X-ray transmission section of the insulating tube and the X-ray emission window of the container, and has a container-side end fixed to the container in a liquid-tight manner.